/*
 * Copyright (C) 2021 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.systemui.statusbar.policy

/**
 * Supports adding a DeviceControls QS tile
 */
interface DeviceControlsController {
    interface Callback {
        /**
         * If controls become available, initiate this callback with the desired position
         */
        fun onControlsUpdate(position: Int?)
    }

    /** Add callback, supporting only a single callback at once */
    fun setCallback(callback: Callback)

    /** Remove any existing callback, if any */
    fun removeCallback()
}
